Well, the Hijri date 19 Muharram 1242 corresponds to the Gregorian date Tuesday, 22 August 1826. This date lies in the first month of the Hijri year 1242 AH, which is Muharram of 1242 AH. Both this Hijri and Gregorian date occur on the single day that is Tuesday without any doubt. The Arabic date 1242/01/19 is calculated using the Umm Al-Qura calendar and the sighting of the moon. One thing to remember is that this Arabic date may occur on different Gregorian date depending upon the region and country and obviously the moon.
If you are still not sure about the date then you can use our Arabic date converter.
The following is the conversion of the Gregorian date 22 August 1826 to its equivalent Arabic date.
The following is the conversion of the Arabic date 19 Muharram 1242 AH to its equivalent Gregorian date.
فَلَا تَعْلَمُ نَفْسٌۭ مَّآ أُخْفِىَ لَهُم مِّن قُرَّةِ أَعْيُنٍۢ جَزَآءًۢ بِمَا كَانُوا۟ يَعْمَلُونَ
No soul knoweth what is kept hid for them of joy, as a reward for what they used to do.
Surah As-Sajda(32:17)